MATERIAL DESCRIPTION

Super Duplex UNS S32760 is among the most common super duplex grade in the market. UNS S32760 is a duplex stainless steel especially designed for service in aggressive chloride-containing environments and has additions of W and Cu compared to UNS S32750. It has very good resistance to localized corrosion and stress corrosion cracking in combination with high mechanical strength.

CHEMICAL COMPOSITION

WEIGHT% C SI MN S P CR NI MO N CU W
MIN.  24,00  6,00  3,00  0,20  0,50 0,50
MAX.  0,030  1,00  1,00  0,010  0,030  26,00  8,00  4,00  0,30  1,00  1,00

PREN= (Cr%+3.3Mo%+16N%) ≥ 40
Product Standards: EN 10088-3, ASTM A276, ASTM A479, ASTM A182–11A
(Chemical composition and mechanical properties only)
Approvals: NACE MR0175, NORSOK M650, NORSOK M630 MDS D53/ D54/ D55/ D57

APPLICATIONS

The main applications are for details with special requirements for high corrosion resistance. UNS S32760 is characterized by:
• High resistance to stress corrosion cracking in halide containing environments.
• High resistance to pitting and crevice corrosion.
• High resistance to general corrosion.
• High mechanical strength.
• High resistance to erosion corrosion and corrosion fatigue.
It is widely used in oil & gas, hydropower, pressure vessels, pulp & paper, structural components and chemical tankers.

Mechanical Properties: Minimum mechanical properties for forged materials

YIELD STRENGTH
RP0.2
MPA
TENSILE STRENGTH
RM
MPA
ELONGATION
[%]
HARDNESS
[HB]
IMPACT
CHARPY-V, -46ºC
[J]
PRE
BAR  ≥ 550  ≥ 750  ≥ 25  ≤ 270  ≥ 45  ≥ 40
PLATE CR  ≥ 550  750 – 1000  ≥ 25  ≥ 45  ≥ 40
PLATE HR  ≥ 550  750 – 930  ≥ 25  ≥ 45  ≥ 40

Heat Treatment

Solution annealing at 1100°C followed by water quenching.

Weldability

Very good

ALLOY 1.4501 / UNS S32760 / F55 / Zeron 100 ROUND BAR

DESCRIPTION KG/M
12,7 mm 1.1
15,87 mm 1.5
19,05 mm 2.3
25,4 mm 4.2
31,75 mm 6.2
38,1 mm 9.2
44,5 mm 12.7
50,8 mm 16.2
60 mm 22.6
70 mm 30.8
76,2 mm 36.6
80 mm 40.2
90 mm 50.9
101,6 mm 64.7
120 mm 90.5
127 mm 104.7
130 mm 106.
DESCRIPTION KG/M
140 mm 123.
152 mm 147
160 mm 162
170 mm 182
180 mm 204
203,2 mm 258
220 mm 304
230 mm 333
240 mm 362
254 mm 402
280 mm 493
300 mm 566
304,8 mm 579
330 mm 686
355,6 mm 797
380 mm 910
406,4 mm 1040

ALLOY 1.4501 / UNS S32760 / F55 / Zeron 100 PLATES

DESCRIPTION KG/PLATE
3 x 1500 x 3000 mm 108
3 x 1500 x 6000 mm 216
3 x 2000 x 6000 mm 288
4 x 1500 x 3000 mm 144
4 x 1500 x 6000 mm 288
4 x 2000 x 6000 mm 384
5 x 1500 x 3000 mm 180
5 x 1500 x 6000 mm 360
5 x 2000 x 6000 mm 480
6 x 1500 x 3000 mm 216
6 x 1500 x 6000 mm 432
6 x 2000 x 6000 mm 576
8 x 1500 x 3000 mm 297
8 x 1500 x 6000 mm 594
8 x 2000 x 6000 mm 791
10 x 1500 x 3000 mm 371
10 x 1500 x 6000 mm 742
10 x 2000 x 6000 mm 989
12 x 1500 x 3000 mm 445
12 x 1500 x 6000 mm 890
DESCRIPTION KG/PLATE
12 x 2000 x 6000 mm 1187
15 x 1500 x 3000 mm 557
15 x 1500 x 6000 mm 1113
15 x 2000 x 6000 mm 1484
20 x 1500 x 3000 mm 742
20 x 1500 x 6000 mm 1440
20 x 2000 x 6000 mm 1978
25 x 1500 x 3000 mm 927
25 x 1500 x 6000 mm 1854
25 x 2000 x 6000 mm 2472
30 x 1500 x 3000 mm 1113
30 x 1500 x 6000 mm 2225
30 x 2000 x 6000 mm 2967
40 x 1500 x 3000 mm 1484
40 x 1500 x 6000 mm 2967
40 x 2000 x 6000 mm 3956
50 x 1500 x 3000 mm 1854
50 x 1500 x 6000 mm 3708
50 x 2000 x 6000 mm 4944